George miller sternberg



X" dilated $11M paw chitin;

Letters Patent No. 104,788,, dated June 28, 1870.-

FRUIT-DRIER.

The Schedule referred to in thesoLettem Patent and making part of the same.

I, Gnonon MILLER S'rnnmenne, oi Fort Riley, in the county of Davis and State of Kansas, have invented a new and improved Family Fruit-Drier; and I do hereby declare that the following is a full, clear, and exactdescr'iption of the construction arid operation of the same, reference being bad to the accompanying drawing making a part of this specification, in which- Figure 1 is a View oi'fthe apparatus placed upon a cooking-stove in position for use. s

Figure 2 is a view of a modified form of the appar'atus for specialpurposes. f

Figure 3 is a plan view of a vertical section of the apparatus.

'Figur'e 4 is a plan view of a horizontal section of the same. t The object of this invention is to furnish aconvenicntand cheap apparatus for family and general use in the dr'ying of fruits, berries, herbs, 866., which shall operate upon the principle of causing a constant current of heated air to pass over the article to be dried,

thus rapidly depriving it of its moisture, and at a temperature so low as not to cook or otherwise alter its condition.

'In the drawing-- 7 trernity, communicate with the general atmosphere.

.The drying-chamber 0 contains trays, D, having perforated or wire-gauze bottoms.

The lowermost of these trays rests upon a narrow projecting shelf, (I, and the remaining trays are supported by this, one upon another.- Each tray has a central opening, through which passes-the tube of the funnel A when they are in position in the drying- T chamber."

E is a close-fitting cover, which may be removed from the drying-chamber O to obtain access .to its interior.

The mode of operation is as follows:

down through the funnel A into the stove, and, in v consequence the external air to rush through the tubes 0 into the drying-chamber. I

A constant current of air is thus maintained through the perforated bottoms of the trays D, and over the article contained in them to be dried. The waterin the vessel B, being heated by the fire in' the stove, communicates heat to the air in the chamber 0 by radiation from the metallic walls of the chamber.

The amount of heat thus communicated will de pend, to some extent, upon the height at which boiling water is allowed to stand in the vessel B. The temperature maintained within the drying-chamber will also depend upon the rapidity with which heated air is drawn through the funnel A, and cold air admitted through the tubes 0, and may, consequently, be increased or diminished by increasing or diminishing the size of the tube a of funnel A, and of the tubes 0.

A modified form of the apparatus for special purposes may be made with the funnelAwithout instead of within the drying-chamber O, as illustrated hereinbefore set forth.

GEO. M. STERNBEBG.

Witnesses: v l

PHILIP M. PRICE, J r., H, 0, HASBROUCK.

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